BibTeX Reference for “Tracking Preference Expression (DNT)”

@TechReport{Singer:19:TPE,
  author      = "David Singer and Roy Fielding",
  title       = "Tracking Preference Expression ({DNT})",
  month       = jan,
  note        = "https://www.w3.org/TR/2019/NOTE-tracking-dnt-20190117/",
  year        = "2019",
  bibsource   = "https://w2.syronex.com/jmr/w3c-biblio",
  type        = "",
  institution = "W3C",
}